The wick is made of a high grade of cotton or linen. The material is woven (or braided) so that it will burn in one direction and will curl so that its end remains in the candle flame's oxidizing zone for even and intense burning. Often, wire-core wicks are used.
Differentiate among the non-urinary waste management systems. The excretory system is a passive biological system that removes excess and unnecessary materials from the body, so as to help maintain homeostasis and prevent damage. The main organs involved in waste management are the skin, lungs, liver, and kidneys.
How Cells Take Out the Trash. Cells rely on garbage disposal systems to keep their interiors neat and tidy. If it weren't for these systems, cells could look like microscopic junkyardsâand worse, they might not function properly. So constant cleaning is a crucial biological process, and if it goes wrong, it can cause serious problems.